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Leading Trade Fair for Powder & Bulk Solids Processing and Analytics

30.08. - 01.09.2022 // Nuremberg, Germany

New Date: POWTECH 2022 from 30 August - 01 September 2022

+++ The entries in the exhibitor & product database correspond to the registration status for POWTECH 2019. +++

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Exhibitors & Products POWTECH 2019
Zoom Image LOGO_Dewatering sieve: Type WAFL

Dewatering sieve: Type WAFL

LOGO_Dewatering sieve: Type WAFL

Dewatering sieve: Type WAFL

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Dewatering machines series WAFL are the ideal dewatering sieve for fine and finest solids. Fields of application are separations in suspensions below 1 mm respective the dewatering of these.

Typically the screen achieves a dewatering ratio which is twice as good as a standard linear motion dewatering sieve. Practically it means approx. 8 wt. % residual moisture is possible whereas standard screens are reaching of 15 wt. %. This difference means easier material handling and less drying costs for you because the material is already dewatered respectively pre-dried at a high grade at the screen outlet. So RHEWUM customers can apply smaller dryer dimensions and they will save energy cost due to a less amount of water has to be evaporated. Alternatively the output of an existing dryer can be increased without exchanging it, just by applying a high performance dewatering sieve.

Functional Principle

Main characteristic of the dewatering sieve WAFL is the combination of two screening principles – the direct and the indirect excitation of the screen cloth. On the one hand a high-frequency linear movement of the housing of the dewatering sieve is generated by out-of-balance motors. This vibration transports the product along the screen mesh. On the other hand side magnetic vibrators are generating high-frequency oscillations which lead to a very high separation efficiency, especially in de-watering.

The dewatering sieve type WAFL is equipped with a supporting mesh for de-loading the overlaying finer separation mesh. Additionally a feed bin and a water spraying system are part of the scope of supply.

Strengths of the concept

  • High vertical acceleration of the material due to direct excitation
  • Higher throughput
  • Higher product quality
  • Dewatering ratio twice as good as standard linear motion screen
  • 8 wt. % residual moisture in contrast
    to 15 wt. % (compared to usual screens)

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